Many Membrane Bioreactor (MBR) facilities have been constructed in North America, however to date the largest operating MBR facility in Traverse City MI has had a maximum month capacity of 8.5 mgd (32 MLD). The Brightwater MBR plant, now under construction in King County, Washington, is designed to have a maximum continuous capacity of 39 mgd (148 MLD), with a peak MBR treatment capacity of 57 mgd (216 MLD). The design of this facility, the largest under construction in the world, faced many challenges associated with the design and control of such a large facility. One challenge was the control and treatment of peak wet weather flows in excess of the MBR capacity by chemical-enhanced primary clarification. A second challenge was the implementation of a competitive procurement process for membrane equipment for the facility. Foam management, aeration system design, and internal recirculation system sizing were also key design issues.

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Featured in Environmental Science & Engineering Magazine, February 2018 Edition
Through conversations with plant operators and personal experience servicing aeration equipment, the Aeration Industries’ team recognized the great importance of maintenance and safety for those servicing wastewater aeration equipment. The idea to develop a mount on a sliding pedestal with the goal to allow operators to maintain equipment safely on the walkway was derived. The secondary goal was to reduce the cost of maintenan...

PROJECT DETAILS
LOCATION Chicago, Illinois, U.S.
CUSTOMER U.S. Army Corps of Engineers, for the Chicago O’Hare Reservoir
SOLUTION Aeration of wastewater treatment reservoir
TECHNOLOGIES 100-horsepower TORNADO® Surface Self-Aspirating Aerators
The Chicago area’s wastewater authority wanted to add an aeration system to its three storm and wastewater reservoirs to avoid stagnant water. Reservoirs often held wastewater for a significant amount of time before it could be processed by the treatment...

Overview
Hussain Sagar Lake in India faced an inflow of untreated waste and pollution causing decreasing DO levels and foul odors in the nearby community. An even more critical threat was eutrophication, or an excessive number of nutrients in the body of water, choking out the natural aquatic life.
Given the lake is stagnate, circulation and the distribution of efficient aeration was needed to alleviate these issues.
Challenge
Hussain Sagar Lake is located in a recreational area with many visitors. The lake...

Robust in operation: at Emsbüren, the AERZEN turbo saves quite a lot of energy
At Emsbüren wastewater treatment plant, Wasserverband Lingener Land invested in new blower technology for the aeration tank. In comparison with the old assembly, the turbo blower made by AERZEN saves between 100 and 200 kilowatt hours every day. Modernisation of wastewater treatment plants in order to reduce their energy consumption benefits the entire population.
Wasserverband Lingener Land has four wastewater treatment...